I have a pair of XM4s that have become unusable after 2 years due to an ANC mic problem.
Something is causing a lot of feedback in the mic that is causing the headphones to emit a horribly loud and high pitched screeching sound. You can of course turn the ANC off but the headphones always start with them on.
I have a pair of XM4s that have become unusable after 2 years due to an ANC mic problem.
Something is causing a lot of feedback in the mic that is causing the headphones to emit a horribly loud and high pitched screeching sound. You can of course turn the ANC off but the headphones always start with them on.